void LoadOneTable(
XmlNode root,
ref CodePage page)
{
Debug.Assert(page != null, "");
// <characterSet name="Basic Arabic" ISOcode="33">
XmlNodeList nodes = root.SelectNodes("code");
/*
* <code>
* <marc>21</marc>
* <ucs>0021</ucs>
* <utf-8>21</utf-8>
* <name>EXCLAMATION MARK</name>
* </code>
* */
for (int i = 0; i < nodes.Count; i++)
{
XmlNode node = nodes[i];
CodeEntry entry = new CodeEntry();
string strASCII = DomUtil.GetElementText(node, "marc");
string strUnicode = DomUtil.GetElementText(node, "ucs");
if (String.IsNullOrEmpty(strASCII) == true ||
String.IsNullOrEmpty(strUnicode) == true)
{
continue;
}
entry.ASCII = System.Convert.ToInt32(strASCII, 16);
entry.Unicode = System.Convert.ToInt32(strUnicode, 16);
page.Add(entry);
}
}
int AsciiToUnicode(int iCodeG0,
int iCodeG1,
string strSource,
out string strTarget,
out string strError)
{
strTarget = "";
strError = "";
CodePage pageG0 = null;
CodePage pageG1 = null;
pageG0 = FindPage(iCodeG0);
if (pageG0 == null)
{
strError = "不能识别的G0代码页 0x" + System.Convert.ToString(iCodeG0, 16);
return(-1);
}
pageG1 = FindPage(iCodeG1);
if (pageG1 == null)
{
strError = "不能识别的G1代码页 0x" + System.Convert.ToString(iCodeG1, 16);
return(-1);
}
for (int i = 0; i < strSource.Length; i++)
{
byte b = (byte)strSource[i];
int u = 0;
if (b >= 0xa1 && b <= 0xfe)
{
// 应用G1代码页
// b -= 0x80;
u = pageG1.GetUnicode(b);
strTarget += (char)u;
}
else if (b >= 0x21 && b <= 0x7e)
{
// 应用G0代码页
u = pageG0.GetUnicode(b);
strTarget += (char)u;
}
else
{
strTarget += strSource[i];
continue;
}
}
return(0);
}
CodePage FindPage(int iCode)
{
for (int i = 0; i < this.CodePages.Count; i++)
{
CodePage page = this.CodePages[i];
if (page.Code == iCode)
{
return(page);
}
}
return(null);
}
public void BuildASCIiTables(string strXmlFileName)
{
XmlDocument dom = new XmlDocument();
dom.Load(strXmlFileName);
// <characterSet name="Basic Arabic" ISOcode="33">
XmlNodeList nodes = dom.DocumentElement.SelectNodes("//characterSet");
this.CodePages = new List <CodePage>();
for (int i = 0; i < nodes.Count; i++)
{
XmlNode node = nodes[i];
CodePage page = new CodePage();
page.Name = DomUtil.GetAttr(node, "name");
page.Code = System.Convert.ToInt32(DomUtil.GetAttr(node, "ISOcode"), 16);
LoadOneTable(node, ref page);
this.CodePages.Add(page);
}
}
